Unfortunately plans for Pixowl to develop fell through, according to Ari's message on the Discord server. Ari did make it clear that he is willing to let anyone who is interested in developing Eden to do so. If you or anyone you know have the skills to do this and are interested, please contact him. In other news, Eden will be free to download beginning on November 1st.

I would like for it to be made open source, and then multiple people can work on it. I'd certainly contribute!

Hey Jason, Nice to hear from you again. Ari on the Eden Discord did say that he would make it open source if anyone was interested. As you are wanting to contribute, make sure to contact him, either on the discord or by email.